Fixing tests

Author: gigi81

tests/System.IO.Abstractions.Extensions.Tests/System.IO.Abstractions.Extensions.Tests.csproj

@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>net8.0;net7.0;net6.0;net5.0</TargetFrameworks>
+		<TargetFrameworks>net9.0;net8.0</TargetFrameworks>
 		<TargetFrameworks Condition="!$([MSBuild]::IsOsUnixLike())">$(TargetFrameworks);net462</TargetFrameworks>
 		<IsPackable>false</IsPackable>
 		<IsTestable>true</IsTestable>
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="TestableIO.System.IO.Abstractions.Wrappers" Version="17.*" />
+		<PackageReference Include="TestableIO.System.IO.Abstractions.Wrappers" Version="21.3.1" />
 		<ProjectReference Include="..\..\src\System.IO.Abstractions.Extensions\System.IO.Abstractions.Extensions.csproj" />
 	</ItemGroup>